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Having the "same" vector types with different modes means that we can end up vectorising a constructor with a different mode from the lhs. This patch adds a VIEW_CONVERT_EXPR in that case. This showed up on existing tests when testing with fixed-length -msve-vector-bits=128. 2020-01-15 Richard Sandiford <richard.sandiford@arm.com> gcc/ * tree-vect-slp.c (vectorize_slp_instance_root_stmt): Use a VIEW_CONVERT_EXPR if the vectorized constructor has a diffeent type from the lhs.
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